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seq

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2015-12-10 19:20:16 -08:00
parent 30580a012a
commit 5eb23e1e7a
17 changed files with 287 additions and 141 deletions
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7
src/ast/rewriter/seq_rewriter.h
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@ -53,9 +53,14 @@ class seq_rewriter {
br_status mk_re_plus(expr* a, expr_ref& result);
br_status mk_re_opt(expr* a, expr_ref& result);
bool set_empty(unsigned sz, expr* const* es, expr_ref_vector& lhs, expr_ref_vector& rhs);
bool set_empty(unsigned sz, expr* const* es, bool all, expr_ref_vector& lhs, expr_ref_vector& rhs);
bool is_subsequence(unsigned n, expr* const* l, unsigned m, expr* const* r,
expr_ref_vector& lhs, expr_ref_vector& rhs, bool& is_sat);
bool length_constrained(unsigned n, expr* const* l, unsigned m, expr* const* r,
expr_ref_vector& lhs, expr_ref_vector& rhs, bool& is_sat);
bool min_length(unsigned n, expr* const* es, size_t& len);
expr* concat_non_empty(unsigned n, expr* const* es);
public:
seq_rewriter(ast_manager & m, params_ref const & p = params_ref()):
m_util(m), m_autil(m) {